76335-79-0Relevant academic research and scientific papers
29Si and 13C NMR Spectra of 4-Substituted 2-Methoxytrimethylsiloxybenzenes. Factors Determining the Chemical Shifts in Models of Lignin Constituents
Schraml, Jan,Kvicalova, Magdalena,Chvalovsky, Vaclav,Elder, Thomas,Brezny, Robert
, p. 973 - 978 (2007/10/02)
29Si and 13C NMR chemical shifts are reported for a series of twenty 4-substituted 2-methoxytrimethylsiloxybenzenes; the set of substituents incorporates a basic set of ten substituents differing in their relative polar and resonance effects and ten other
Studies on the chemical constituents of rutaceous plants. XLIX. Development of a versatile method for the synthesis of antitumor-active benzo[c]phenanthridine alkaloids. (1). Preparation of various 2,4-bisaryl-4-oxobutyronitriles and 2,4-bisaryl-4-oxobutyramides
Ishii,Ishikawa,Deushi,et al.
, p. 3024 - 3038 (2007/10/02)
For the sake of establishment of a versatile synthetic method for benzo[c]phenanthridine alkaloids, improvement of the Robinson synthetic method was examined. Thirteen chalcones (7a-m) were prepared by condensation of two acetophenone derivatives (15 and 16) with eleven benzaldehyde derivatives (19a-k) as fundamental starting materials. Hydrocyanation of these chalcones (7a-1) except one (7m) gave the corresponding 2,4-bisaryl-4-oxobutyronitriles (8a-1). Eleven 2,4-bisaryl-4-oxobutyramides (9a-k) were also prepared.
